Lamp.



F. E. TOBIAS.

LAMP.-

APPLIOATION'HLED 001223.19111. 1,034,536. Patented Aug. 6, 1912.l

Inwcutor y@ www (Incrnm F. H. TOBIAS. LAMP.

y APPLICATION FILED 0( }T.23, 1911v 1 Patented Aug. 6,1912.

Buventor rea-Noren. ronnie, or New Yoan, N; Y.

LAMP.

Specication'of Letters Patent.

Patented Aug.. 6, i912.

Appiication atea october ze, 1911. semi No. 656.086.

T0 all whom it may concern:

Be it known that I, FRANCIS H. Tonnie, a citizen of the United States. residing" at New York, in the county of N ew York and State of New York7 have-invented certain new and useful Improvements in Lamps; and l do hereby declare the following` to be a full, clear, and 'exact' description of the invention, such as will enable others skilled in the art to which it appeitains to make and use the same. y 4

My invention relates to lamps and more particularlyto head-lightsfor automobiles or the like. and has for an object to provide a means whereby a lamp may yhave a powerful beain of light for use where desired and .a subdued light for use in cities.

Another object of my invention is to have a lamp with the usual burnerand reector and to havea dimmer interposed therebetween, said dimmer being inade in 'sections and said sections being swung from one plane to another to'give the desired effects according to the' eonditionsQ Further objects of iny invention is the ineans for operating' the sections of the dini- -nier simultaneously.

Further objects fofmy invention will be lapparent from the following speciiication7 appended claims and drawings in which Figure l is a horizontal sectional view through a. lamp showing the elements of my invention applied thereto. Fig. 2 is a vertical sectional View through the lamp showing' the elements ,of my invent-ion in elevation. Fig. 3 is a similar view to Figs l with the parte moved in their opposite position and the Solenoid shown in section. Fig'. tl

is a rear elevation of my device. Fig. 5 isa bottom view of thelower ends of the shafts support-ing sections of the dimmer'.

- Referring' more specically to the drawings there is shown a housing 10 of the com-' mon type in which .there is a reflector 11` lcommon to this type of a lamp and a pillar 12 for a .burner for acetylene gas lbut this pillar maybe replaced by a support foren .arc lightif so desired. A plate 13 having one 'end thereof bentas at 14 and bearings forined'in the lend of said portion, the plate being .further bent as at 15 to forni substantially asemi-.circular portion, which portion is intendedto. partly `surround the pillar 12 'andthe portion 16 extending in advance 'of 1j the portion-15 ,is Somewhat broadened and pprvedito, conformto the shell on tliepsole'v sha-fte' 2l and noid 17 to be hereinafter described. A plate 18 which has one end thereof bent as at 19` the ends of which are formed into bearings to receive a vertical shaft to be hereinafter 'described and :iportion of which bent portion is cut. away to expose a portion of tht shaft. carried in the bearings to be hereinafter described and the opposite end of saidplate is bifiircated and bent as shown at 20 to partly surround thev pillar and said ends being resilient so that when' theplate 18 is secured to the plate 13 thecurved portion `15 ofthe plate 18 and the ends 20 securely clamp the pillar 12. Vertical shafts 21 and are secured inthe bearings in the end portions li. and 19 respectively and on the are the gears 23 and 24 respectively. which gears interinesh so that inoveinent is transmitted from the shaft l22- to theshaft 21 through said gears. The shaft22 is provided with a crank 25 to which the link is pivot-ally connected and the link is again pivotally connected tothe core 27 of the solenoid 17. This solenoid is divided into independentwindings 28 and 29 so as to cause 'thecore to move froml either end toward the other according to the winding energized and from the adjacent ends of the windings 28 and 29 is wire which passes through abattery or the like to a switch. The opposite end of the wind ling'28. is connected tothe switch by the wire 31 and the winding 29 beine; connected to the opposite end of the switch by the wire 32. The circuit through the windings 28 and 29 is closed by the points 33 and 34 which. when closed contact with the terminals of the wires 31 and 82 respectively. The'wires 31 and 32 which lead from the solenoid to the switch may be placed in any said cranks beine so positioned on the lower 'ends fof. the sha'sas to cause the shafts to remain in tired posit-ion u iider tension of the spring 36. when rocked Ato either side of the axis ofthe shaft-s and secured tog the upper ends of the Vshafts 21 and 22 are the blades v37 and 38respectively which constitute the dimmer 'of "said light. The blade 37 is slightly less than a semi-circle while the blade 38 is somewhat larger than .1 semicircle so'that Whenas shovvn in F ig. 1 of the Vrays et light emanatingfromthe flame in all directions, the solenoid 27 is caused t'o .advance Within the Winding 28 Which in -turn rocks the shafts 21 and 22 a quarter of a turn vwhich in turn causes the blades 37 and 38' tov swing correspondingly and turn their'thin edges to the light thereby permi .tingfthe rays of light from .the backside o the {lai-aie to strike the reflector and thereupon be projected forwardly therefnom.

'Ihe upper ends of the blades3'7 and 38 at points in -axial alinement with the axis o tin by a member 39. t

I am avvare thatdimmers .havel been placed in lamps between the light and the front side the shafts 21 and A"2.2 are held in spaced relaof the lamp and also an enlarged and single piece et metal interposed between the light and the'retlector Whlch'piece is swung on ax pivot carried bythe housing but my mvention is to provide a simple and convenient .method of forming a dimmer between the light and thev neector when desired and to cause the dimmer to occupy a minimum of space Within the rays of the light when apowerful light is desired.

Having thus described my invention, I claim 1. In combination with a lamp having fa .burner and a reflector, a dimmer comprislng two substantially semi-circular overlapping plates, spaced vertical shaftsfor said plates, a clamp/ing member secured to said burner, and havin bearings for 'said shafts, and means carried by said clamping member to rock said shafts. 2. In a dimmer for automobile or other lamps, two substantially semi-circular plates, a bracket membersecured to the burner ot' 5 said lamp, bearings formed in saidbracket member, vert-ical lshafts mounted in said bearings, said shafts having'geared connecltion to one another, each ofsaid shafts hav-v .ing a crank on the'lower end thereof, the 5 free ends of said cranks having spring con' nection with one another and said cranlisbeing positioned to retain said shafts. 1n xed position in either limit of their rocking play and means to rock said shafts..

In testimony whereof Il alix my signature in the presence of two Witnesses.

4 FRANCIS H; TUBI-AS. Witnesses:

S. H. GOLDING, J os. GO'rjrLmB. 

